I also use the AW IMR Batteries.Plus I use the AW IC Batteries as well.I use the IMR's for "LR" Vaping & the IC's for 3.7v vaping.I have found the IMR's put out a better 'punch' with all my "LR" atties than the IC's. Also, the IMR's last about the same time as the IC's compared while vaping between the "LR" and 3.7v vaping. Even though the IMR's are 2000mah and the IC's are 2900 mah.I'm using the 18650 eGo 'big boy' (as I call them) mod from Joye Tech. Love these mods. last me for 24 to 36 hrs on the 2900mah IC batts.I can also use the IMR's @ 200mah and get about the same time frame with the same mod. Just switch out the batteries. Done, vape on!